| <p style="text-align:justify;">The heart is a muscular organ in the centre of the chest behind the sternum. It consists of four chambers: the two upper chambers are called the right and left atria, and the two lower chambers are called the right and left ventricles. The right atrium and ventricle are often called the right heart, and the left atrium and left ventricle functionally form the left heart.<ref name="ref4">Rehman, I., & Rehman, A., authors. Anatomy, Thorax, Heart. National library of medicine. [updated August 28,2023; cited 2024 March 22] Available from: https://www.ncbi.nlm.nih.gov/books/NBK470256/</ref></p> | | <p style="text-align:justify;">The heart is a muscular organ in the centre of the chest behind the sternum. It consists of four chambers: the two upper chambers are called the right and left atria, and the two lower chambers are called the right and left ventricles. The right atrium and ventricle are often called the right heart, and the left atrium and left ventricle functionally form the left heart.<ref name="ref4">Rehman, I., & Rehman, A., authors. Anatomy, Thorax, Heart. National library of medicine. [updated August 28,2023; cited 2024 March 22] Available from: https://www.ncbi.nlm.nih.gov/books/NBK470256/</ref></p> |